Finding the Fourth Proportional to 2,280.09, 3,146.45 and 1,618.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.09 : 3,146.45 = 1,618.05 : x
2. Step 2: Convert to fraction form
   2,280.09/3,146.45 = 1,618.05/x
3. Step 3: Cross multiply
   2,280.09x = 3,146.45 × 1,618.05
4. Step 4: Simplify right side
   2,280.09x = 5,091,105.33
5. Step 5: Solve for x
   x = 5,091,105.33/2,280.09
6. Step 6: Final answer
   x = 2,232.85